Răspunsuri

2014-04-23T22:39:00+03:00
2x-5 = 7
2x = 7 + 5
2x = 12
x = 6 il inlocium pe x in a doua ecuatie si se obtine
4(6+m) = 2m*6 +8
24 + 4m = 12 m +8
4m -12 m = 8 -24
-8m = -16
8m = 16
m = 16/8
m=2
1 5 1